North America Native Plant

Greene’s Hawkweed

Botanical name: Hieracium greenei

USDA symbol: HIGR2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Greene’s Hawkweed: A Rare West Coast Native Worth Protecting If you’re passionate about native plants and love supporting biodiversity, Greene’s hawkweed (Hieracium greenei) might just capture your gardening heart. This lesser-known perennial forb represents something special in the world of native gardening – a plant that’s both beautiful and rare, ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Greene’s Hawkweed: A Rare West Coast Native Worth Protecting

If you’re passionate about native plants and love supporting biodiversity, Greene’s hawkweed (Hieracium greenei) might just capture your gardening heart. This lesser-known perennial forb represents something special in the world of native gardening – a plant that’s both beautiful and rare, deserving of our attention and protection.

What Makes Greene’s Hawkweed Special?

Greene’s hawkweed is a perennial herbaceous plant, which means it comes back year after year without developing woody stems. As a forb, it’s part of that wonderful group of non-woody flowering plants that form the backbone of many natural ecosystems. What makes this particular hawkweed truly special is its limited native range and conservation status.

Where Does It Call Home?

This native beauty has a fairly exclusive address – you’ll only find Greene’s hawkweed naturally growing in California and Oregon. It’s what we call an endemic species, meaning it evolved in this specific region and calls the West Coast home. This limited distribution makes it all the more precious for native plant enthusiasts in these areas.

A Word About Rarity

Here’s something important every gardener should know: Greene’s hawkweed has a Global Conservation Status of S3S4, which indicates some level of conservation concern. While not critically endangered, this status suggests the plant faces certain challenges in the wild. This rarity makes it both more valuable and more responsibility-laden for gardeners who choose to grow it.

Should You Plant Greene’s Hawkweed?

If you’re gardening in California or Oregon and want to support native biodiversity, Greene’s hawkweed can be a wonderful addition – but with an important caveat. Due to its conservation status, you should only obtain this plant through responsible sources. This means:

  • Purchasing from reputable native plant nurseries that propagate their own stock
  • Never collecting seeds or plants from wild populations
  • Ensuring any plants you buy are nursery-propagated, not wild-collected
  • Supporting conservation efforts by choosing native alternatives when possible

Growing Tips and Expectations

While specific growing information for Greene’s hawkweed is limited, we can draw some guidance from its classification as a perennial forb and its membership in the hawkweed family. Like most native plants, it likely prefers conditions similar to its natural habitat in California and Oregon.

As a forb, you can expect Greene’s hawkweed to be a relatively low-maintenance plant once established. Most hawkweeds are quite hardy and adaptable, though the specific needs of this species may be more specialized given its limited range.

The Bigger Picture

Sometimes the most rewarding native plants aren’t the showiest or easiest to find. Greene’s hawkweed represents something important in native gardening – the chance to participate in conservation right in your backyard. By growing rare native plants responsibly, you’re helping preserve genetic diversity and supporting the ecosystems these plants evolved to serve.

If you can’t find Greene’s hawkweed through responsible sources, consider other native hawkweed species or similar native forbs in your area. The goal is supporting native biodiversity, and sometimes that means making choices that benefit the bigger ecosystem picture.

Final Thoughts

Greene’s hawkweed might not be the easiest native plant to find or grow, but for dedicated native plant gardeners in California and Oregon, it represents something special – a chance to grow a piece of their local natural heritage. Just remember: with great native plants comes great responsibility. Always source ethically, and never take from the wild.

Your garden can be a sanctuary for rare native plants, but only when we approach it with the respect and care these precious species deserve.

Greene’s Hawkweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Hieracium L. - hawkweed

Species

Hieracium greenei A. Gray - Greene's hawkweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA